Gravenspine is a unique Bone Wand from Diablo II. Gravenspine is strange in that it gives several physical bonuses, including Cold Damage and boosts to Dexterity and Strength, yet it, like all wands is nowhere near intended for physical use. Rather, Gravenspine is fairly useful for all-around Necromancers, and its mana boost is rather nice early in game.